Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$278M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$84.4M |
| 3 |
NVIDIA
NVDA
|
+$76.9M |
| 4 |
TSMC
TSM
|
+$74.9M |
| 5 |
Amazon
AMZN
|
+$53.5M |
Top Sells
| 1 |
Apple
AAPL
|
+$497M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$73.7M |
| 3 |
Alibaba
BABA
|
+$49M |
| 4 |
Advanced Micro Devices
AMD
|
+$48.1M |
| 5 |
Uber
UBER
|
+$41.8M |
Sector Composition
| 1 | Technology | 22.9% |
| 2 | Consumer Discretionary | 12.26% |
| 3 | Healthcare | 9.52% |
| 4 | Communication Services | 8.42% |
| 5 | Financials | 7.07% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
651
Direxion Daily GOOGL Bull 2X Shares
GGLL
$467M
| $379K | ﹤0.01% |
+13,215
| New | +$379K |
|
652
Procept Biorobotics
PRCT
$2.09B
| $379K | ﹤0.01% |
+6,522
| New | +$379K |
|
653
Steelcase
SCS
$1.92B
| $378K | ﹤0.01% |
34,533
+33,829
| +4,805% | +$370K |
|
654
Ambev
ABEV
$35.2B
| $377K | ﹤0.01% |
162,223
-8,491
| -5% | -$19.7K |
|
|
SJT
655
San Juan Basin Royalty Trust
SJT
$271M
| $377K | ﹤0.01% |
68,180
+44,986
| +194% | +$249K |
|
656
DigitalBridge
DBRG
$2.03B
| $376K | ﹤0.01% |
42,709
-6,890
| -14% | -$60.7K |
|
657
SPDR S&P MidCap 400 ETF Trust
MDY
$23.8B
| $374K | ﹤0.01% |
+702
| New | +$374K |
|
658
Designer Brands
DBI
$233M
| $373K | ﹤0.01% |
102,210
+90,690
| +787% | +$331K |
|
659
Caleres
CAL
$527M
| $372K | ﹤0.01% |
21,621
+19,310
| +836% | +$332K |
|
660
MBIA
MBI
$374M
| $371K | ﹤0.01% |
74,531
-63,349
| -46% | -$315K |
|
661
Old Dominion Freight Line
ODFL
$30.7B
| $370K | ﹤0.01% |
2,238
+468
| +26% | +$77.4K |
|
662
Warrior Met Coal
HCC
$3.08B
| $368K | ﹤0.01% |
+7,716
| New | +$368K |
|
663
Ocular Therapeutix
OCUL
$2.27B
| $366K | ﹤0.01% |
49,962
-43,511
| -47% | -$319K |
|
664
Rithm Capital
RITM
$6.63B
| $366K | ﹤0.01% |
31,968
-130,432
| -80% | -$1.49M |
|
665
SPDR Bloomberg 1-3 Month T-Bill ETF
BIL
$41.8B
| $365K | ﹤0.01% |
3,988
-1,040
| -21% | -$95.2K |
|
666
Loews
L
$19.9B
| $365K | ﹤0.01% |
+3,976
| New | +$365K |
|
667
TPG
TPG
$8.85B
| $364K | ﹤0.01% |
7,688
+7,425
| +2,823% | +$352K |
|
|
TTAN
668
ServiceTitan, Inc. Class A Common Stock
TTAN
$10.6B
| $364K | ﹤0.01% |
+3,831
| New | +$364K |
|
669
Bausch + Lomb
BLCO
$5.31B
| $359K | ﹤0.01% |
24,795
-44,057
| -64% | -$638K |
|
670
Morgan Stanley Direct Lending Fund
MSDL
$1.54B
| $357K | ﹤0.01% |
17,904
+9,840
| +122% | +$196K |
|
671
Centene
CNC
$15.4B
| $356K | ﹤0.01% |
5,874
-33,892
| -85% | -$2.05M |
|
672
Structure Therapeutics
GPCR
$1.2B
| $356K | ﹤0.01% |
20,604
+3,258
| +19% | +$56.3K |
|
673
Vital Energy
VTLE
$647M
| $356K | ﹤0.01% |
+16,818
| New | +$356K |
|
674
Kinetik
KNTK
$2.58B
| $355K | ﹤0.01% |
6,850
+686
| +11% | +$35.6K |
|
675
PIMCO 25+ Year Zero Coupon US Treasury Index Exchange-Traded Fund
ZROZ
$1.72B
| $351K | ﹤0.01% |
4,911
+2,564
| +109% | +$183K |
|